Personally I'm caught - the coalition to oppose austerity is great and having three quarters of a million people out striking simultaneously will be fantastic. But I'm revolted by the idea that our actions will serve to increase pay conditions for those who professionally lock up and deport our comrades, and a brief look at their strike history suggests they'd scoff at the idea of solidarity strikes in support of other workers' struggles.
I guess these things are never perfect. Bring on J30!!